Add Simpson board support

variants/simpson/variant.h

@@ -0,0 +1,62 @@
+/*
+ * Simpson variant for the Pro Micro nRF52840 carrier used by this device.
+ * Arduino pin indices map to physical nRF52840 GPIOs in variant.cpp.
+ */
+#pragma once
+
+#include "WVariant.h"
+
+#define VARIANT_MCK        (64000000ul)
+#define USE_LFRC
+
+#define PIN_EXT_VCC        (21)
+#define EXT_VCC            PIN_EXT_VCC
+
+#define BATTERY_PIN        (17)
+#define ADC_RESOLUTION     12
+
+#define PINS_COUNT         (23)
+#define NUM_DIGITAL_PINS   (23)
+#define NUM_ANALOG_INPUTS  (1)
+#define NUM_ANALOG_OUTPUTS (0)
+
+#define PIN_SERIAL1_TX     (4)
+#define PIN_SERIAL1_RX     (3)
+
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE_SDA       (8)
+#define PIN_WIRE_SCL       (7)
+
+#define SPI_INTERFACES_COUNT 1
+#define PIN_SPI_SCK        (12)
+#define PIN_SPI_MISO       (15)
+#define PIN_SPI_MOSI       (14)
+#define PIN_SPI_NSS        (13)
+
+#define PIN_LED            (22)
+#define LED_PIN            PIN_LED
+#define LED_BLUE           PIN_LED
+#define LED_BUILTIN        PIN_LED
+#define LED_STATE_ON       1
+
+#define PIN_BUTTON1        (6)
+#define BUTTON_PIN         PIN_BUTTON1
+
+#define PIN_BUZZER         (0)
+#ifndef PIN_VIBRATION
+  #define PIN_VIBRATION    (1)
+#endif
+#define PIN_GPS_EN         (5)
+
+#define P_LORA_NSS         (13)
+#define P_LORA_DIO_1       (11)
+#define P_LORA_RESET       (10)
+#define P_LORA_BUSY        (16)
+#define P_LORA_MISO        (15)
+#define P_LORA_SCLK        (12)
+#define P_LORA_MOSI        (14)
+#define SX126X_POWER_EN    (21)
+#define SX126X_RXEN        (2)
+#define SX126X_TXEN        (-1)
+#define SX126X_DIO2_AS_RF_SWITCH true
+#define SX126X_DIO3_TCXO_VOLTAGE (1.8f)